Senescent Vs. Non-Senescent Cells (IMAGE) The Wistar Institute Caption Shown on the left is an ATM positive cell that has undergone senescence (depicted by blue color). On the right are cells with low ATM that are not senescent due to a cancer-like change in metabolism. Credit The Wistar Institute Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.